package com.cxl.mapreduce._1wordCount;

import org.apache.hadoop.io.IntWritable;
import org.apache.hadoop.io.LongWritable;
import org.apache.hadoop.io.Text;
import org.apache.hadoop.mapreduce.Mapper;

import java.io.IOException;

/**
 * @author joyson
 * @create 2019-06-07-上午11:59
 */
public class WordCountMapper extends Mapper<LongWritable, Text,Text, IntWritable> {
    IntWritable v=new IntWritable(1);
    Text k=new Text();
    @Override
    protected void map(LongWritable key, Text value, Context context) throws IOException, InterruptedException {
        String line=value.toString();
        String[] words = line.split(" ");
        for (String word:words){
            k.set(word);
            context.write(k,v);
        }
    }
}
